47751222 has 32 divisors (see below), whose sum is σ = 99302400. Its totient is φ = 15291360.

The previous prime is 47751163. The next prime is 47751233. The reversal of 47751222 is 22215774.

It is a self number, because there is not a number n which added to its sum of digits gives 47751222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26853 + ... + 28575.

It is an arithmetic number, because the mean of its divisors is an integer number (3103200).

Almost surely, 2^47751222 is an apocalyptic number.

47751222 is an abundant number, since it is smaller than the sum of its proper divisors (51551178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47751222 is a wasteful number, since it uses less digits than its factorization.

47751222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908.

The product of its digits is 7840, while the sum is 30.

The square root of 47751222 is about 6910.2259007937. The cubic root of 47751222 is about 362.7951701318.

Adding to 47751222 its reverse (22215774), we get a palindrome (69966996).

The spelling of 47751222 in words is "forty-seven million, seven hundred fifty-one thousand, two hundred twenty-two".